| | | 1 . | Directions (1 - 5): Study the given information carefully to answer the questions that follow.
An urn contains4 green, 5 blue 2 red and 3 yellow marbles.
$Q.$ If two marbles are drawn at random, what is the probability that both are red or at least one is red ? |
A. $26\over93$ | B. $2\over7$ | C. $199\over366$ | D. None of these | | | 2 . | If three marbles are drawn at random, what is the probability that at least one is yellow? |
A. $1\over 5$ | B. $199\over 364$ | C. $135\over 324$ | D. $5\over 9$ | | | 3 . | If eight marbles are drawn at random, what is the probability that there are equal number of marbles of each colour? |
A. $3\over 8$ | B. $351\over 738$ | C. $60\over 1001$ | D. $1\over 1011$ | | | 4 . | If three marbles are drawn at random, what is the probability that none is green ? |
A. $3\over 8$ | B. $273\over 748$ | C. $30\over 91$ | D. None of these | | | 5 . | A bag contains 13 white and 7 black balls. Two balls are drawn at random. What is the propability that they are of the same of the colour? |
A. $41\over 190$ | B. $21\over 190$ | C. $59\over 190$ | D. $99\over 190$ | | | 6 . | From a well - shuffled pack of 52 playing cards. one card is drawn at random. What is the probabilty that the card drawn will be a black king ? |
A. $1\over 26$ | B. $7\over 13$ | C. $3\over 13$ | D. $9\over 13$ | | | 7 . | Directions (7-10): Study the given information carefully and answer the questions that follow :
An urn contains 3 red, 6 blue, 2 green & 4 yellow marbales .
$Q.$ If two marbles are picked at random, what is the probability that one is green, two are blue and one is red? |
A. $4\over 15$ | B. $17\over 280$ | C. $6\over 91$ | D. $11\over 15$ | | | 8 . | If two marbles are picked at random, what is the probability that eigher both are red or both are green ? |
A. $3\over 5$ | B. $4\over 105$ | C. $2\over 7$ | D. None of these | | | 9 . | If four marbles are picked at random, what is the probability that at least one is yellow ? |
A. $91\over 123$ | B. $69\over 91$ | C. $125\over 143$ | D. $1\over4$ | | | 10 . | If three marbles are picked at random, what is the probability that two are blue and one is yellow ? |
A. $2\over 15$ | B. $6\over 91$ | C. $12\over 91$ | D. $3\over 15$ | | | | |
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